Publication Date

1993

Description

The eJClent of and the factors affecting the disllibution of Microlaena sllpoldeJ on the Northern Tablelands of NSW were examined in a SHH:) of 102 paddocks on 33 properties. Relationships between the abundance of M. stilpoides and spatial, climatic and pasture management factors were determined udng 'X} tests. Paddocks with more abundant M. s,ipoides were obse1Yed in the eastern and southern parts of the Tablelands where alcitudc and rainfall are higher. Tree densit) also had a posilive association with its abundance as it grows well under shade. Cultivation and sowing of exotic pasture species initially eliminated 01 reduced the abundance of M. stipoide.s but after several years 01 afle1 a drought, it reinvaded the pasture. Combinations of site factors such as high elevation and rainfall, high tree density, and minimum soil disturbance led lo abundant M. stipoldes In pastures.

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Factors Affecting the Distribution of MIcrolaena stipoides on the Northern Tablelands of New South Wales

The eJClent of and the factors affecting the disllibution of Microlaena sllpoldeJ on the Northern Tablelands of NSW were examined in a SHH:) of 102 paddocks on 33 properties. Relationships between the abundance of M. stilpoides and spatial, climatic and pasture management factors were determined udng 'X} tests. Paddocks with more abundant M. s,ipoides were obse1Yed in the eastern and southern parts of the Tablelands where alcitudc and rainfall are higher. Tree densit) also had a posilive association with its abundance as it grows well under shade. Cultivation and sowing of exotic pasture species initially eliminated 01 reduced the abundance of M. stipoide.s but after several years 01 afle1 a drought, it reinvaded the pasture. Combinations of site factors such as high elevation and rainfall, high tree density, and minimum soil disturbance led lo abundant M. stipoldes In pastures.